22/F, Yen Sheng Centre, 64 Hoi Yuen Road, Kwun Tong, Kowloon, Hong Kong
+852 2168 3800
[email protected]
Macau Office
Expert Systems (Macau) Limited
Avenida do Dr. Rodrigo Rodrigues No. 600-E, Edif. First International Commercial Centre, 14 andar, sala 1404, Macau
+853 2872 2078
[email protected]